Improvement in latches



UNITED STATES Erice.

ATENT IMPROVEMENT IN LATCHES.

Specification forming part of Letters Patent No. L13,063, dated June 7, 1864.

To @ZZ 107mm, it may concern.-

Be it known that I, G. C. WORTH, of Upper Sandusky, in the county of Wyandot and State of Ohio, have invented a new and useful Combination of a Latch and Lock; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable any person skilled in the art to make and use the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a view of the inner side of aA door having my invention applied to it; Fig. 2, a vertical section of the same taken in the line Fig. 1; Fig. 3, a vertical section of a portion of the same taken in the line y y, Fig. 4; Fig. 4, a horizontal section of the same taken in the line z z, Fig. l; Fig. 5, a trans` verse section of the same taken in the line a" x', Fig. 3; Fig. 6, a detached plan or top View of the bolt and latch pertaining to the same; Fig. 7, a vertical longitudinal section ot Fig. 6 taken in the line y' y'.

Similar letters of reference indicate correspmding parts in the several gures.

The object of this invention is to obtain a combined latch and lock for doors which will serve as an elicient fastening and be capable of being constructed and applied at a small cost and used equally well in the capacity of either a latch, a lock, or a bolt.

A represents a door, which may hang upon hinges in the usual way; and B is a bolt ot' tubular form which is inserted in an augerhole horizontally into the door, its outer end projecting a suitable distance beyond the edge of the same.

G represents what I term a latch 7 which is fitted within the bolt B, and is provided with a pin or pivot, a, at each side of it, the latter working in recesses b in the bolt, as shown clearly in Fig. 6. The pins or pivots a are nearv the inner endy of the bolt, andthe outer end ot' the same is provided with a pendant, c, which passes down through a slot, d, in the bolt B near its outer end, as shown clearly in Fig. 7, the gravity of the latch G, owing to the position of the pins or pivots a, having a tendency to keep the pendant c down in the slot d.

D D represent two knob-arbors, which pass into the door A, one at each side, and project over the inner part of the latch G. These knob-arbors are fitted in collars E, secured to the door so that they may be moved up and down on the collars E as centers, but they are not allowed to turn as commonly arranged. The arbors D may be secured in the collars E by pins e, as shown clearly in Fig. 2.

From the above description it will be seen that by raising either knob D' of the arbors F the inner ends of the latter will bear down upon the inner part of the latch C and raise the pendant c up within the bolt B, as clearly shown in red in Fig. 7

G G' represent two metallic cases, which are fitted in the jamb f of the door, and between which the outer part of the bolt B passes when the door is closed. (See Figs. 1 and 3.)

The lower case, G', has a slot, g., made in its upper surface, to receive the pendant c of the latch U, and when the door is closing the pendant c will rise when it strikes G', the upper surface otl which is beveled to effect that result, and said pendant will drop into the slot g of G' and secure the door in a closed state, the pendant c being, as previously described, raised out of the slot g and within the bolt B by raising either of the knobs D', at the same time forcing up the drop-bolt above liberates the bolt B, and hence the door may be opened.

IIa-ving thus described the latch arrange.A ment pertaining to my invention, I will now proceed to describe the lock attachment.

From the foregoing description it will be seen at once that in order to convert the latch device into a lock some mechanism must be employed to prevent the outer part of the latch (i from rising under the action of the knobarbors D D. This mechanism consists of a sliding bar, H, one or more, fitted in the -upper case, G, and operated by an eccentric, I,

the latter being turned by the application of a key, g, which is inserted into the jambj' through a proper hole, git, at the outer side of the door. (See Figs. 3 and 5.) Within the case G there is a drop-bolt, K, which is allowed to work freely up and down, said bolt being provided with a pendant, ax, which works through a slot, bx, in the bottom ofthe case G directly over the outer end ot thelatch C and falls by its own gravity into the bolt B, when the pendant c of the latch drops into the slot g of the case G'. (See Fig. 3.) .lhe bar or bars H have their inner parts, h, made deeper than their outer parts, h', and by moving the bar or bars H so that their inner parts,

h, will be over the drop-bolt K, the lower end of which falls into the mortise in the bolt B and the drop-bolt K will be prevented from rising; but by moving the bar or bars backward so that the outer parts, hf, will be over the bolt K, the pendant c will be allowed to rise, as indicated in red outline in Fig. 3.

Any one skilled in the art of lock-making will perceive that the bar or bars H lnay be arranged similar to the slide-bolt of a lock and with tu1nblers,if desired, like burglar-prooi` locks, and it will also be perceived that the lock attachment may be arranged so as to be operated either from the inner or the outer side of the door. I do not confine myself, therefore, to any precise manner of operating said bar or bars, as that may t ary according to the uish, style, or cost of the device, and l would state that one of the bars H may be arranged so as to be operated directly by hand at the inner side of the door, so as to prevent the door being unlocked at the outer side.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The bolt B, having the latch O tt-ed within it., and provided with the pendant c, in connection with the case G in the jambj'ot' the door-frame, all arranged to operate in the manner substantially as and for the purpose herein set forth.

2. The knob-arborsD D, when used in coinbination with the bolt B,latcl1 C, and case G', and arranged substantial] y as and for the purpose speciiied.

3. The sliding bar or bars H, arranged to be operated by a key in any proper manner, when said bar or bars are used in combination with the bolt B, latch C, drop-bolt K, and knob-arbors D D, to serve as a lock for the latch, substantially as set forth.

G. C. WORTH.

TVitnesses:

JULIA S. WORTH, R. D. DUMM. 

